Gnome et Rhône was a major French aircraft engine manufacturer. Between 1914 and 1918 they produced 25,000 of their 9-cylinder Delta and Le Rhône 110 hp (81 kW) rotary designs, while another 75,000 were produced by various licensees, powering the majority of aircraft in the first half of the war on both sides of the conflict. In the post-war era they started a new design series originally based on the Bristol Jupiter, but evolving into the excellent 1,000 hp-class (750 kW) Gnome-Rhône 14K Mistral Major radial, which was likewise licensed and used around the world during World War II. They were nationalized as a part of Snecma in 1949, but the brand lived on for a time as the manufacturer of Gnome et Rhône motorcycles and Gnome et Rhône bicycles.